Last week at IFA 2010 in Berlin, the SD Association revealed that it had developed a new, dual-row memory card design that can achieve bus interface speeds of up to 300 MB/s. That's a definite increase, as the current UHS-I technology supports data transfer speeds up to 104 MB/s.
In an announcement released during the show, the SD Association said that the new design will be used for SDXC and SDHC devices and memory cards. The design will also be fully backwards compatible, and incorporated into the upcoming SD 4.0 specification slated for an "early 2011" release.
According to the Association, new high speed interface signals will be assigned to the second row of pins. The design will not change the actual physical size or shape of SDXC and SDHC cards, and will be available in both full-size and micro form factors.
"Out innovative dual-row pin design ultimately lets consumers using equipped products to manage the massive storage capacity found on SDXC memory cards at incredible speeds," said Norm Frentz, chairman of the SD Association. “SD can now support high definition video from Hollywood movie studios, television broadcasts, or HD videos taken on your latest vacation."